Why anemic people(especially pregnant women)crave ice? what is the correlation between anemia and ice?

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

How does natural selection change thephenotypes within a population over time?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain